As a 7 foot junior in high school, there are two areas I would evaluate; 1) Does he catch the ball cleanly and 2) does he move his feet well enough to keep his balance? From the limited video I've seen, I think the kid is going to be a monster. He seems to have good soft hands and didn't have to catch the ball after it bounced off his hands. I saw good footwork. I was impressed that one play, as the entry pass was in the air he reached for the ball and shifted his feet for his spin to the hoop. Thereby making the move in the instant of the catch. He has short comings, but I assume the staff is at work making suggestions for drills that will expedite his remediation.